Support device for furnace

• US 6,286,442 B1
• Filed: 08/31/2000
• Issued: 09/11/2001
• Est. Priority Date: 09/13/1999
• Status: Expired due to Fees

• Current Assignee: Outokumpu Oyj
• Original Assignee: Outokumpu Oyj
• Inventors: Ranki, Markus
• Primary Examiner(s): Bennett, Henry
• Assistant Examiner(s): RINEHART, KENNETH
• Application Number:
  US09/652,362
• Time in Patent Office: 376 Days
• Field of Search: 110/336, 266/285, 266/197, 266/280, 266/286, 432/126, 432/251
• US Class Current: 110/336
• CPC Class Codes: F27B 3/12 Working chambers or casings; Supports therefor
• CPC Class Codes: F27D 1/0026 the expansion joint being a resilient element, e.g. a metallic plate between two bricks
• CPC Class Codes: F27D 1/145 Assembling elements

Abstract

A support device for a furnace, particularly the bottom furnace of a flash smelting furnace, includes a fastening device flexibly connecting a pillar element to a support structure. The pillar element includes a support part having a slot for receiving a counterpart attached to the support structure. The engagement of the counterpart with the slot controls the horizontal motion of the pillar element as the furnace walls move caused by thermal expansion.

Claims

1. A support device for supporting a bottom portion of a furnace which includes furnace walls, said support device comprising:

a pillar element including a support part, said support part having a slot defining a support surface;

a support structure for the bottom portion of the furnace, said support structure supporting a counterpart said counterpart being a pin element; and

a fastening device flexibly connecting the pillar element to the support structure to permit movement of the furnace walls caused by thermal expansion, wherein the support surface of the slot defined by the support part receives the counterpart and controls the horizontal motion of the pillar element.

2. A support device according to claim 1, wherein the support surface is a side surface of the slot made in the support part.

3. A support device according to claim 1, wherein the fastening device comprises a pull bar passing through an aperture defined in the pillar element, a fastening loop attached to an end of the pull bar, and at least one flexible element coupling the pull bar to the pillar element to resist displacement of the pillar element radially inwardly towards the furnace wall, wherein the counterpart provides a fastening point for the fastening loop to the support structure.

4. A support device according to claim 3, wherein in the pillar element, there is arranged a second support surface, against which the flexible element of the fastening device is secured.

5. A support device according to claim 1, wherein the pillar element is provided with a compartment in order to protect the fastening device.

6. A support device according to claim 1, wherein the bottom portion of the furnace has a junction surface, wherein the support surface of the slot defined by the support part is at least in one transversal direction essentially parallel to the junction surface.

7. A support device according to claim 1, wherein the bottom portion of the furnace has a junction surface, wherein the support surface is parallel to a tangent of the junction surface.

8. A support device according to claim 1, wherein adjacent support pillars are interconnected by at least one transversal support beam.

9. A support device according to claim 1, wherein the pillar element includes a bottom end, wherein the bottom end of the pillar element is attached to the support structure by two fastening devices.

10. A support device of claim 1, wherein the furnace is a flash smelting furnace.